Comparison

Arcletic vs stiff

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Arcletic

This app offers science-based audio sessions for personal and professional growth, using performance psychology and hypnotherapy to help overcome anxiety, boost confidence, and develop a growth mindset. Sessions are short, immersive, and designed for lasting results.

Highlights
  • Science-based audio sessions
  • Performance psychology techniques
  • Hypnotherapy for anxiety relief
  • Develop growth mindset
  • Boost confidence and performance
  • Short, immersive audio trainings
  • Biofeedback for progress tracking
Read full description

Immersive Performance Psychology from Elite Sports for Your Personal and Professional Growth. ● Science-based, highly effective, performance psychology trainings with 5-10 minute immersive audios. ● Researched and developed with the University of Vienna and leading experts. Do you struggle with performance anxiety? Lack of motivation? Do you feel stresses that decrease confidence? Want to do better, achieve your dream goals, develop a growth mindset and improve your mental skills? Meet Arcletic – the mental training app that uses hypnotherapy and psychology training in the form of short, yet immersive audio sessions. Listen to an immersive audio training 10 times to notice a clear difference. Listen to it 50 times and you'll master a new mind skill that will improve your life or career. Download now to: ● Overcome limiting anxieties ● Increase your performance and boost your confidence ● Develop a growth mindset geared to success ● Have well-being tools on demand Whether you need a mindset coach for success, morning motivation, mental toughness and confidence booster, or mental ability improvement, Arcletic is your mental coach with short, yet effective mental workouts. ■ SCIENCE-BASED AUDIO MENTAL TRAINING The mind is the human’s most powerful tool. If you control it, you can overcome mental struggles such as anxiety, fear of public speaking, stage fright, performance anxiety, and lack of motivation, and achieve your dreams and goals. Explore our audio sessions for mindshift and mindset developed by leading experts and hypnotherapists. Embrace positive psychology to stop anxiety, boost confidence, and develop strong mind skills. Here are some of the mental training audio sessions you can have on Arcletic: ‣ Mental training for anxieties: Exam anxiety, Stage fright, Anxiety Relief, Golf Putting ‣ For Performance: Good morning boost (Priming, Success Imagery), Success Imagery (Soccer Penalty) Psycho-Regulation (Sprint), Pre Workout Our mindset coach and mental training app will expand both the anxiety relief and sport psychology sessions and categories as we expand our network of experts and hypnotherapists. ■ WHAT’S THE ARCLETIC DIFFERENCE? ► No courses or classes, but well-researched audio psychology and mentality training to change your mind and behavior. From anxiety relief to a boost in performance, confidence, and inspiration, Arcletic tends to change your mindset for good and help you get rid of mind blocks that are holding you down. ► Science-based mental training combining well researched Performance Psychology Interventions for quick and lasting results with immersive Technology/Psychology to make the audio trainings short and entertaining - but highly effective. ► Biofeedback to track progress and develop mental skills. ► Immersive audios with professional voice actors and hypnotherapists, and background music. ► Unlimited listenings you own each audio session that you purchase to listen to unlimited times. Don’t allow yourself to be controlled by your mind. Instead, train to take control and shift your mindset to your goals and dreams. ► ► ► Download this mental training app to make a lasting mind shift and develop strong mental skills. _____ WE ARE HERE FOR YOU! If you have any queries regarding our mental training and mindset coach app, please send them to office@arcletic.com Find out more: https://www.arcletic.com/ _____ Read more about our terms and conditions here: EULA: https://www.arcletic.com/eula Terms & Conditions: https://www.arcletic.com/terms Privacy Policy: https://www.arcletic.com/privacy-policy

About

stiff

Features
Read full description

ok storytime. you know how you should stretch but you literally don't. and your back is filing complaints. and your physio has given up on you. and you stand up after 3 hours of doom scrolling looking like a question mark. we built an app for that. it's called stiff. the shrimp is judgmental. you've been warned. HOW IT WORKS (it's unhinged, stay with me) 1. you pick the apps that are wrecking your spine. instagram. tiktok. you know who you are. 2. you set a daily limit 3. you exceed it (you will, that's the point) 4. those apps get blocked 5. the only way to unblock them is to stretch for 2 minutes 6. there is no negotiating with the shrimp. it has logged your behavior. it has notes. WHAT IT ACTUALLY DOES blocks selected apps when you exceed your screen time limit. unblock them by completing a guided 2-minute stretch verified by your camera. earn rewards. collect shrimps. fix your posture. THE NAMING THING (this is the part that breaks people) during onboarding you name your shrimp. then you name yourself. then you optionally give your full name. so when you skip a stretch your shrimp goes: "alexandra marie chen. we need to talk." it hits different when it knows your whole name. we did this on purpose. we are not sorry. THE COLLECTION (the dopamine pipeline) every stretch earns shrimp points. shrimp points buy draws. draws unlock cards from a 33-shrimp collection across 5 rarity tiers — common, uncommon, rare, epic, legendary. some shrimps are streak-locked. some are nearly impossible to pull. all of them have something to say. the legendary shrimps haunt you. you want them. that's the point. WHAT IT IS a stretch app for people who hate stretch apps a screen time blocker that has Opinions more accountability than you asked for literally just doing what your physio said but with consequences WHAT IT IS NOT another wellness app (we're not like that) a habit tracker (those don't know you like we do) your friend (the shrimp has expectations) PRIVACY everything stays on your device. no accounts. no servers. no data sold. apple's family controls handles the screen time stuff which means we literally cannot see which apps you blocked. we just count them and the shrimp makes assumptions. PRICING 7-day free trial. then it's a paid subscription. cancel anytime in settings. the shrimp will be disappointed but understand. (it won't understand. it will file a complaint.) we made this app to hold ourselves accountable and now you can be held accountable too. welcome bestie. the shrimp has been waiting. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://stiff-puce.vercel.app/privacy Terms of Service: https://stiff-puce.vercel.app/terms

Screenshots

Arcletic4 screens
stiff4 screens

Verdict

The call

The clearest difference is ads: stiff at none against Arcletic's shown. Arcletic's advantage is iOS requirement (12.4 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Arcletic sells 10 in-app purchases, starting at $39.99 per year and stiff sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Arcletic ships an update every 8 days, stiff weekly. The most recent releases landed on October 22, 2026 and October 19, 2026 respectively.

Scorecard2 real differences · 7 level
Arcletic versus stiff: the parameters behind the verdict, then further details
ParameterArcleticstiff
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 8 daysWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPod — betteriPhone
Requires iOS12.4 — better17.0
Further details — not scored
Size45 MB110 MB
Age rating4+12+
DeveloperAthletic Research Center GmbHNga Man Yip

In-app purchases

10 purchases

Arcletic

Subscriptions1
  • ARC+ Yearly7 Days trial$39.991 Year
One-time9
  • IMST Goal Setting 1$14.99
  • IMST Inner Drive$14.99
  • IMST Pre-Workout$16.99
Show 6 more
  • IMST Deepwork Focus$17.99
  • IMST Goal Setting Pro$21.99
  • IMST for Tough Days$39.99
  • IMST After Work Transition$39.99
  • IMST Start Work$39.99
  • IMST Anxiety by Marisa Peer$48.99
2 purchases

stiff

Subscriptions2
  • Stiff Pro Weekly7 Days trial$1.997 Days
  • Stiff Pro Yearly7 Days trial$39.991 Year

Questions

Is Arcletic free?
Arcletic is free to download, with in-app purchases available.
Is stiff free?
stiff is free to download, with in-app purchases available.
Do Arcletic or stiff have ads?
Arcletic shows ads; stiff does not.
Which is updated more often, Arcletic or stiff?
Arcletic ships an update every 8 days, and stiff weekly. Most recently, Arcletic was updated on October 22, 2026 and stiff on October 19, 2026.

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